Perkins original Perkins 7C-4173 Fuel Injector Assembly for 3500A Engine 3508 3512 3516 777B 785 789 Replacement for OEM  original new injector

The Perkins 7C-4173 fuel injector assembly is an original equipment component engineered for the Perkins 3500 series diesel engines, including the 3512A, 3512, 3516, 3516B, and 3508 models. Manufactured to OEM-grade specifications, this injector delivers reliable fuel delivery and precise atomization, supporting consistent combustion performance across demanding industrial, marine, generator, and mining applications. Its direct replacement design ensures straightforward installation and full compatibility with existing fuel system configurations.

Constructed from heavy-duty steel with corrosion-resistant materials, the 7C4173 injector is built to withstand harsh operating environments and extended service intervals. The precision-machined nozzle produces an optimized spray pattern that enhances engine efficiency, reduces fuel consumption, and minimizes exhaust emissions. Each unit undergoes strict quality control to guarantee stable injection pressure, accurate fuel metering, and long-term durability under continuous load conditions.

This genuine Perkins injector carries cross reference numbers 0R-2507, 7W-7032, CAT7C4173, and is compatible with both the 3512A and 3516B engine platforms. It is widely specified for generator sets, marine propulsion systems, mining haul trucks, oilfield power generation units, and large-scale industrial diesel power plants. Routine maintenance practices — including the use of clean diesel fuel, regular fuel filter replacement, periodic spray pattern inspection, and injector bench testing during major engine overhauls — help maintain peak injector performance and prolong overall engine service life.